What is the Latin word for painfully?

The usual Latin words for “painfully” are acerbus, dolenter, labōriōsus; also operōsus. The right choice depends on the sense; see the distinctions below.

English → Latin

“painfully” in Latin

acerbusharsh, bitter, unripe, sour, premature, not yet marriageable; sharp, severe, bitter (i.e., extremely painful); rough, vi dolenterwith pain or sorrow, painfully labōriōsuslaborious, toilsome, demanding; industrious, hard-working operōsuspainstaking; active, busy, industrious; laborious

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

painfully

So as to cause pain of mind, acerbe; dolenter.

With labor or pains, laboriose; operose; multo labore et sudore. Vid: the adjective.

Quick answer

What is the Latin word for painfully?: The usual Latin words for “painfully” are acerbus, dolenter, labōriōsus; also operōsus. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.